Disabling Autofill in Ranked would make ranked more bearable.
It shouldn't even exist in ranked, to be honest. Usually, 70% of the time, this autofilled player will say that they don't know how to play their role, and all around suck in it. They ask for another role, say mid/top, and usually 50% of the time they don't trade. There's a small chance that this autofilled player will then troll, making the experience worse for everyone else.
I know that autofill exists to make finding queues easier, but all around, it just makes ranked feel even worse to play with that small chance to get that troll/person that doesn't know how to play their role. It's a dumb idea to implement this in Ranked in the first place. I seriously wouldn't mind waiting an extra 2 minutes just so I don't come across autofills.
If you don't want to completely get rid of autofills, maybe they could do what 70% of other games do for their queues- present an option to shorten the queue time by allowing autofill.
All around, Ranked sucks and makes me so close to becoming insane with all the things that are wrong with it.
P.S: This is mostly a problem in low elo, (Iron/Bronze to Gold) and god does it make it harder to even climb out of the hellhole it is.